It appears that the SSH service is running on your router and someone is trying various passwords in an attempt to establish an SSH session (I.E. command line session) to your router.

If you don't need the SSH feature, then you should go to Administration -> Admin Access. Under the 'SSH Daemon' section, ensure that 'Enable at startup' is not checked and click 'Save' at the bottom of the page. If the daemon is running, it will be stopped and it won't restart if your router reboots.

If you do need the SSH daemon, I suggest setting up the service to use public / private keys for SSH access.

It appears that the SSH service is running on your router and someone is trying various passwords in an attempt to establish an SSH session (I.E. command line session) to your router.

If you don't need the SSH feature, then you should go to Administration -> Admin Access. Under the 'SSH Daemon' section, ensure that 'Enable at startup' is not checked and click 'Save' at the bottom of the page. If the daemon is running, it will be stopped and it won't restart if your router reboots.

If you do need the SSH daemon, I suggest setting up the service to use public / private keys for SSH access.